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Effect of Some Viticultural Parameters on the Grape Carotenoid Profile

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dc.contributor.authorOliveira, Carla
dc.contributor.authorFerreira, António César
dc.contributor.authorCosta, Paulo
dc.contributor.authorGuerra, Joaquim
dc.contributor.authorPinho, Paula Guedes de
dc.date.accessioned2011-10-21T15:02:43Z
dc.date.available2011-10-21T15:02:43Z
dc.date.issued2004
dc.description.abstractThe effect of some viticultural parameters on the grape carotenoid profile was investigated. Grape cultivar, ripeness stage, sunlight and shade exposure, altitude, and vegetative height were studied. Differences between cultivars were observed in eight different black grape varieties: Touriga Brasileira (TBR), Tinta Barroca (TB), Tinta Amarela (TA), Souza˜o (S), Touriga Franca (TF), Touriga Nacional (TN), Tinta Roriz (TR), and Tinto Ca˜o (TC), from the Douro region. TA and TBR clearly produced higher concentrations of carotenoids. Results showed that carotenoid content decreased during ripening. Decreases of lutein were observed until 66%, whereas â-carotene slowly decreased, having a constant level until the harvest date. Carotenoid contents were consistently higher in grapes exposed to shade than in those exposed to direct sunlight in both studied white grape varieties, Maria Gomes (MG) and Loureiro (L). In the Douro Valley, high-elevation terraces, which presented a lower temperature and higher humidity during the maturation period, appeared to produce grapes with higher carotenoid values. Grapes grown with higher vegetative height seem to have higher carotenoid levels; furthermore, grapes grown with lower vegetative height had higher weight and sugar concentrations.por
dc.identifier.citationOLIVEIRA, Carla...[et al] - Effect of Some Viticultural Parameters on the Grape Carotenoid Profile. Journal of Agricultural and Food Chemistry. ISSN 0021-8561. Vol. 52 (2004), p. 4178-4184por
dc.identifier.doi10.1021/jf0498766
dc.identifier.urihttp://hdl.handle.net/10400.14/6703
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherAmerican Chemical Societypor
dc.subjectVitis viniferapor
dc.subjectCarotenoidspor
dc.subjectCultivarspor
dc.subjectSunlight and shadepor
dc.subjectAltitudepor
dc.subjectVegetative heightpor
dc.subjectBerrypor
dc.titleEffect of Some Viticultural Parameters on the Grape Carotenoid Profilepor
dc.typejournal article
dspace.entity.typePublication
person.familyNameOliveira
person.familyNameSilva Ferreira
person.familyNameGuedes de Pinho
person.givenNameCarla
person.givenNameAntonio Cesar
person.givenNamePaula
person.identifier392870
person.identifier.ciencia-id521E-EE5E-AF0B
person.identifier.ciencia-id931A-48DA-23A8
person.identifier.ciencia-id2510-1418-EF48
person.identifier.orcid0000-0002-3346-2629
person.identifier.orcid0000-0002-1188-1021
person.identifier.orcid0000-0002-7395-5700
person.identifier.scopus-author-id6504448214
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication412b11af-3f1b-4364-888b-b5d87863a40f
relation.isAuthorOfPublication826c11dd-d070-4b67-ac58-c96675e3f3b8
relation.isAuthorOfPublication0bde318f-79f7-4130-8600-e553f3384cc6
relation.isAuthorOfPublication.latestForDiscovery412b11af-3f1b-4364-888b-b5d87863a40f

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